Casares P, Carracedo M C, San Miguel E, Piñeiro R, Garcia-Florez L
Departamento de Genetica, Universidad de Oviedo, Spain.
Behav Genet. 1993 Jul;23(4):349-58. doi: 10.1007/BF01067436.
From a critical review of the literature on mating speed in Drosophila, the importance of fast mating in male fitness is questioned. The genetic architecture of male mating speed (MMS) has been evaluated in D. melanogaster through a populational analysis and a full 5 x 5 diallel cross between inbred lines. The results emphasize the fundamental role of the female genotype in both the absolute and the relative MMS performances. Somewhat different genetic architectures for MMS are revealed according to the female used in the tests. It is suggested that different parts of the complex genetic system involved in the male's "behavioral sexual phenotype" are relevant depending on the female's characteristics, thus causing the heterogeneity in the MMS genetic architecture. An overall picture reveals a genetic system characterized by additivity, dominance for fast mating, and no influence of the X chromosome. There results do not support strong natural selection favoring fast mating in Drosophila males.
通过对果蝇交配速度相关文献的批判性综述，雄性果蝇快速交配对于其适应性的重要性受到质疑。通过群体分析以及近交系之间完整的5×5双列杂交，对黑腹果蝇雄性交配速度（MMS）的遗传结构进行了评估。结果强调了雌性基因型在绝对和相对MMS表现中的基本作用。根据测试中使用的雌性果蝇不同，揭示出了MMS略有不同的遗传结构。这表明，参与雄性“行为性表型”的复杂遗传系统的不同部分，会因雌性特征的不同而具有相关性，从而导致MMS遗传结构的异质性。总体情况显示，该遗传系统具有加性、快速交配的显性以及X染色体无影响的特征。这些结果并不支持果蝇雄性快速交配受到强烈自然选择的观点。
